Ordered spinel LiNi0.5Mn1.5O4 nanorods for high-rate lithium-ion batteries

NCUIR > College of Earth Sciences > Department of Atmospheric Sciences > journal & Dissertation > Item 987654321/99847

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Title:	Ordered spinel LiNi0.5Mn1.5O4 nanorods for high-rate lithium-ion batteries
Authors:	鄭芳怡;Yang, Jingang;Zhang, Xiaolong;Zhu, Zhiqiang;Cheng, Fangyi;Chen, Jun
Contributors:	地球科學學院大氣科學學系
Keywords:	batteries;Cathode material;chemistry;Diffusion;electrodes;lithium;Lithium nickel manganese oxides;Lithium-ion batteries;Nanorods;Raman spectroscopy;X-ray diffraction
Date:	2013-01-01
Issue Date:	2026-04-21 13:38:11 (UTC+8)
Publisher:	Elsevier BV;Elsevier B.V
Abstract:	摘要： ► We have prepared an ordered spinel LiNi0.5Mn1.5O4 nanorods (LNMO-NRs). ► The LNMO-NRs show pure P4332 phase with a uniform one dimensional nanostructure. ► The discharge capacity of the as-prepared LNMO-NRs approached 135mAhg−1 at 1C. ► The LNMO-NRs exhibited a superior high-rate capability (120mAhg−1 at 20C). We report on the synthesis of ordered spinel LiNi0.5Mn1.5O4 nanorods (LNMO-NRs) and their application as high-rate cathode materials of lithium-ion batteries. Ordered spinel LNMO-NRs were prepared by a simple self-support template method followed by a solid-state reaction. The as prepared LNMO-NRs displayed uniform one dimensional (1D) nanostructure with the diameters of about 100nm and the lengths around 2–3μm. X-ray diffraction and Raman spectroscopy showed that the products existed in pure P4332 phase. When the as-prepared LNMO-NRs were applied as the cathode materials for lithium ion batteries, they exhibited a superior high-rate capability (135mAhg−1 at 1C, 120mAhg−1 at 20C) and a good cyclability (at 20C with a high retention of 90% after 80cycles). The durable high-rate capability was attributed to the one-dimensional nanostructure with the ordered phase that shows fast Li-intercalation kinetics and good structural stability. 出版者： Elsevier B.V 出版日期： 2013-01-01 出處： Journal of electroanalytical chemistry (Lausanne, Switzerland), 2013-01, Vol.688 (1), p.113-117 版權： 2012 Elsevier B.V. 識別號： ISSN: 1572-6657 識別號： EISSN: 1873-2569 識別號： DOI: 10.1016/j.jelechem.2012.09.042
Appears in Collections:	[Department of Atmospheric Sciences] journal & Dissertation

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